Add content checklists for block-yod and chair feedback system

Addresses Dafna's observation that licensing decisions lack comprehensive
planning discussion. Systematic corpus analysis of all 24 training decisions
revealed the system learned writing style but not substantive content.

Changes:
- Corpus analysis of all 24 decisions (docs/corpus-analysis.md)
- 5 content checklists by appeal subtype injected into block-yod prompt
- chair_feedback DB table + API endpoints + MCP tools
- Feedback management page in Next.js UI (/feedback)
- Navigation updated with "הערות יו״ר" link

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mcp-server/src/legal_mcp/services/block_writer.py

@@ -20,6 +20,7 @@ from uuid import UUID
 
 from legal_mcp import config
 from legal_mcp.services import db, embeddings, claude_session
+from legal_mcp.services.lessons import get_content_checklist
 
 logger = logging.getLogger(__name__)
 
@@ -215,6 +216,8 @@ BLOCK_PROMPTS = {
 - **ללא כותרות משנה** (חריג: נושאים נפרדים לחלוטין)
 - מספור רציף
 
+{content_checklist}
+
 ## כיוון מאושר (חובה):
 {direction_context}
 
@@ -310,6 +313,15 @@ async def write_block(
     outcome = (decision or {}).get("outcome", "rejected")
     structure_guidance = STRUCTURE_GUIDANCE.get(outcome, "")
 
+    # Content checklist — tells block-yod WHAT topics to cover
+    content_checklist = ""
+    if block_id == "block-yod":
+        content_checklist = get_content_checklist(
+            appeal_type=case.get("appeal_type", ""),
+            subject=case.get("subject", ""),
+            subject_categories=case.get("subject_categories", []),
+        )
+
     # Format prompt — per Anthropic long-context best practices:
     # Place source documents FIRST (top of prompt), instructions LAST.
     # "Queries at the end can improve response quality by up to 30%"
@@ -323,6 +335,7 @@ async def write_block(
         style_context=style_context,
         discussion_context=discussion_context,
         structure_guidance=structure_guidance,
+        content_checklist=content_checklist,
     )
 
     # Restructure: sources first, then instructions